Nilsawang, P., P. . Steannoppakao, and A. . Pheasa. “Effective Administrative on Early Childhood Education for Primary Schools under the Basic Education Commission Offices in the Northeast”. Dhammathas Academic Journal, vol. 22, no. 4, Dec. 2022, pp. 267-80, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/257889.